Available for freelance projects

Hello, I'm Gopi M

Ideas to apps.
Built to matter.

Senior Cross-Platform Mobile, Web & Desktop Developer

With 13+ years of expertise in designing, architecting, and deploying enterprise and consumer applications for mobile (iOS & Android), web, desktop (Windows & macOS via Electron) and installable PWA.

Let's build something Explore my work

Based in Chennai, India Working worldwide

FROM CONCEPT TO LAUNCH

One developer. Every platform.

MobileWebDesktopAI
const yourNextIdea = 'something great';
await build(yourNextIdea);
Thoughtful code. Real-world impact.
MY EVERYDAY TOOLKIT
  • React Native
  • Expo
  • Electron
  • TypeScript
  • Node.js
  • .NET / C#

13+

Years of Experience

52+

Mobile, Web, Desktop & PWA Apps Delivered

1M+

Active Users Served

99.5%

App Availability Rate

WHAT I CAN DO FOR YOU

From first idea to final release.

A hands-on engineering partner for your next product, your toughest bug, or your next big step.

01

Most Popular

Want an AI Chatbot for Your Business?

Turn visitors into paying customers with a 24/7 AI assistant that chats, answers questions and books sales while you sleep — on mobile apps, website, Windows / Apple desktop apps & PWA.

  • ChatGPT-powered chat & voice bots
  • Mobile apps, website, Windows / Mac desktop apps, WhatsApp, PWA & in-app assistants
  • Trained on YOUR business data
Get AI for My Business
02

Urgent Fix

Critical Bugs? Crashes No One Can Fix?

Mobile app, website, desktop app or PWA crashing on launch? 1-star reviews piling up? I hunt down the nastiest production bugs and ship a safe hotfix — fast.

  • Crash, ANR & freeze diagnosis with root-cause report
  • Broken payments, login & sync repaired
  • Emergency hotfix released to stores, desktop & web within days
Fix My App Now
03

AI-Powered Upgrade

Upgrade Your Code with AI Tools

Legacy, messy or slow code eating your time and money? I refactor it with modern AI-assisted engineering — cleaner, faster, cheaper to maintain.

  • AI-assisted code review, cleanup & modernization
  • Migrate legacy code to React Native, Expo, Electron & TypeScript
  • Custom plugins & reusable libraries in Java, C# & npm
  • Faster builds, fewer bugs, happier developers
Modernize My Code
Explore all services
04

Best Value

Low Budget, High-Quality Apps?

Big-agency quality without the big-agency invoice. One senior developer, zero middlemen — premium mobile apps, website, Windows / Apple desktop apps & PWA at freelance prices.

  • Fixed quote upfront — no hidden costs, ever
  • Senior quality: clean code, tested releases
  • Weekly demos — you see progress every week
Get My Free Quote
05

Free Audit

Consult or Upgrade Your Mobile / Web / Desktop App

Slow, buggy or outdated mobile app, website, desktop app or PWA losing users? Get a free expert audit and a clear upgrade plan — no jargon, just results.

  • Free performance, UI & crash audit
  • Speed boost, bug fixes & modern redesign
  • Migrate to React Native, Expo, Electron & the latest stack
Audit My App — Free
06

Your Brand, Your App

Build Your Own Brand Mobile App

Stop depending on marketplaces. Launch your own branded mobile apps, website, Windows / Apple desktop apps & PWA and own your customers forever.

  • Mobile apps (iOS + Android), website, Windows / Mac desktop apps & PWA from a single codebase
  • Your logo, your colors, your store listing
  • Payments, subscriptions & push notifications built in
Start My Brand App
07

Desktop Apps

Need a Desktop App for Windows / Mac?

Get a fast, installable desktop app for Windows & Apple macOS — plus mobile apps, website & PWA — all from one codebase to save time and cost. Need a special feature? I build custom native plugins & libraries in Java, C# & npm.

  • Electron desktop apps for Windows (NSIS / MSI) & macOS (DMG / Mac App Store)
  • Mobile apps (iOS & Android) + responsive website + installable PWA from shared code
  • Custom Java / C# / npm plugins & libraries for any native capability
  • Offline support, system tray, native menus, notifications & secure auto-updates
Build My Desktop App
08

Plugins & SDKs

Need a Custom Plugin or Library?

Missing a native feature? I design and build custom plugins & reusable libraries in Java, C# and npm — so your mobile, desktop, web & PWA apps can do anything native can.

  • Java plugins: Cordova / Capacitor / React Native bridges, background GPS, AAR / JAR libs
  • C# libraries: .NET class libs, NuGet packages, SDK & API integrations
  • npm packages: TypeScript libs, versioned, documented & published
Build My Plugin
09

Enterprise SaaS

Need an Enterprise SaaS / Product Platform?

I build and scale complete B2B product platforms — SaaS web apps, mobile apps, desktop apps & PWA — like MService, an Equipment Lifecycle / Field Service Management platform used by OEMs, dealers, operators & customers across industries.

  • Multi-tenant SaaS architecture with role-based access & multi-client support
  • Offline-first field apps: work orders, dispatch, SLA tracking, barcode, maps & GPS
  • .NET stack expertise — ASP.NET 3.5 / C#, SQL Server, REST APIs (plus PHP & Node.js)
  • Enterprise security: encryption, strong password / lockout policies & audit trails
Build My Platform
10

Launch & Grow

Launch, Rank & Grow Everywhere

Publishing is just day one. Rank higher on the Play Store, App Store & Google and keep users coming back.

  • Store submission + ASO that ranks
  • SEO, analytics & organic user growth
  • Updates, monitoring & long-term support
Grow My Business

SELECTED WORK

Built with purpose. Shipped for real.

Each project is linked to the role it was delivered in — freelance builds are clearly badged.

Selfservit (mservice.ai)

MService Enterprise FSM App — Flagship Product Platform

Cordova • jQuery Mobile • Kendo UI • ASP.NET 3.5 • C# • SQL Server • Custom Java Plugins

The flagship MService product of Selfservit (mservice.ai) — a cloud-based, omni-channel Equipment Lifecycle / Field Service Management SaaS platform for OEMs, dealers, operators & customers on iOS, Android & Windows, built to work even with no network.

  • Flagship MService platform (mservice.ai): FSM, DMS (Direct-to-Dealer) & MService.Net modules connecting machine manufacturer OEM, component OEM, dealer, customer, operator & telematics — personalized per equipment vertical (construction, road, compressor, generators, pharma, UPS, medical CT / X-Ray)
  • Complete service-process automation: work orders / calls, scheduling & dispatch, real-time SLA tracking, barcode scanning, map layers and punch in / punch out with live technician tracking
  • Offline-first sync across attachments, forms, punch in / out and my calls — 99.5% availability for field engineers; custom Java native plugins for background GPS with battery-optimized location fetching
  • .NET server stack: ASP.NET 3.5 / C# web application on SQL Server with multi-client, multi-lingual & strong password / account-lockout security policies
  • Dynamic form handler with versioning, drafts & per-page auto-save; live camera & gallery widgets with image compression, plus mobile reports with pan & zoom
  • Enterprise scale & data security: on-device encryption / decryption, queue-process sync engine, push notifications and releases across Google Play, Apple App Store & Windows Store
Website Android iOS
AstroVed

AstroVed Consumer Mobile App

Ionic • Angular • React Native • .NET • PHP • Node.js • MongoDB • ZegoCall • TeleCMI • Exotel • WebView Payments

The official brand app version of AstroVed.com — a comprehensive personalized Vedic astrology platform with horoscopes, Kundali, Panchang, Virtual Pooja, LIVE TV, product store & astrologer consultations.

  • Official AstroVed.com app: daily / weekly / monthly horoscopes (Rasi Palan), Janma Kundali in South / North Indian chart styles & unlimited profiles — multilingual (English, Hindi, Tamil) & location-based personalization
  • Free Vedic tools: location-based Panchang (Drik), Gowri / Hora planner, Vedic Calendar, Dasa / Bhukti, Jupiter / Saturn / Mars transits, Chandrashtama, lucky color / gemstone / number, Dosha checks (Mangalik, Naga, Pitru, Sade Sati), Numerology & Horoscope Matching
  • Virtual Pooja to your favorite deity + 24x7 LIVE TV streaming of poojas, homams & special events with reminders & replays, AstroVedPedia encyclopedia & home-screen widgets (Thithi, Hora, Horoscope)
  • In-app product store: poojas, homams, yantras, rudraksha, gemstones & remedies with cart, checkout & order history
  • Talk to expert astrologers via chat, voice / video & phone using ZegoCall, TeleCMI & Exotel
  • Multi-backend commerce: .NET + PHP + Node.js / MongoDB APIs with secure WebView-based payment checkout
Website Android iOS
AstroVed

AstroVedSpeaks — Consultation Platform

Node.js • Express.js • PHP • MongoDB • ZegoCloud • TeleCMI • Exotel

An on-demand marketplace connecting users with expert advisors through live chat, voice & video.

  • Real-time WebRTC audio/video sessions via ZegoCloud SDK
  • Cloud telephony PSTN routing with TeleCMI & Exotel APIs
  • Prepaid wallet with real-time per-minute billing engine (Node.js + MongoDB)
  • Advisor filters, live status tracking & booking schedules
Website Android iOS
AstroVed

QuantumGPT — AI Spiritual & Life Guidance Platform

React.js • React Native • Node.js • Express.js • MongoDB • JWT • OpenAI API

A multi-platform AI companion that blends generative AI with Vedic time science, astrology & karma logic for career, relationship & decision guidance.

  • OpenAI API integration with domain-specific context constraints
  • React.js web dashboard + React Native iOS/Android clients
  • Personalized coaching, mantras & remedies from user prompts + planetary metrics
  • JWT auth + tiered subscriptions (Free / Plus / Pro) with daily question quotas
Website Android iOS
AstroVed

Pillai Center Academy — Transformational Learning App

React Native • WordPress • BuddyBoss • In-App Purchases • Audio / Video Courses

The online home of Dr. Baskaran Pillai's programs & courses for health, wealth, relationships & spiritual growth — guiding learners to a 200% life.

  • Lesson-based course catalog, live events & free programs serving 1M+ learners across 98 countries
  • Audio & video lessons: mantras, meditations, karma-clearing protocols & divine empowerment practices
  • No-code WordPress + BuddyBoss web platform — mobile app consumes the existing course & community APIs
  • In-app purchases for audio programs (e.g. Karma Busting, Sharaba) on iOS & Android
Website Android iOS
AstroVed

Instant Pooja Homa — Live Priest Booking App

React Native • TypeScript • Redux Toolkit • ZegoCloud • Razorpay • Firebase • Notifee

A React Native app by AstroVed for booking Instant Poojas and Homas with live priests on video call.

  • Home tabs for Poojas, Homas & Priests with category, language & online-status filters
  • Buy flow: select Priest + Pooja — Razorpay / web checkout — MyOrders history
  • ZegoCloud live video calls with Call Info page, scheduled-order pulse & Join call
  • Drawer menu: orders, feedback, support desk, settings, profile & account deletion
Website Android iOS
Freelance Project

Planets360 — Vedic Astrology Platform

Astro • React • TypeScript • Zod v4 • Netlify • SEO (JSON-LD)

An authentic Vedic astrology web platform offering predictions, matchmaking, and celestial guidance.

  • Free Kundli (birth chart), daily predictions, Panchang & Dasha timing
  • Dosha checks (Mangal Dosha, Sade Satti) & gemstone recommendations
  • 36-Guna Kundli matchmaking & numerology readings
  • Life predictions: career, marriage, health, wealth, education & foreign settlement
  • Astro framework + Zod v4 validation + JSON-LD structured data for SEO
Website OpenAI Plugin
Freelance Project

Commodity Quant — MCX Signals App

Expo SDK • Expo Router • React Native • TypeScript • OneSignal • TanStack Query • Zustand • Msg91

A real-time MCX (Multi Commodity Exchange of India) trading signals app for Android, iOS & Web — all from a single Expo codebase.

  • Live BUY/SELL signal feed with Entry, Target & Stop-Loss levels
  • Multi-method pivot analysis: Classical, Fibonacci & Woodie's
  • Personalized OneSignal push notifications with per-instrument preferences
  • OTP login via Msg91 + tiered subscription with Pro upsell flows
  • SEBI-registered Research Analyst branding & compliance
Website Android

THE PERSON BEHIND THE CODE

A builder, from start to finish.

I'm a Senior Cross-Platform Mobile, Web & Desktop Developer with over 13 years of hands-on experience in building high-impact mobile, web, desktop and PWA solutions. I specialize in creating seamless user experiences across iOS, Android, Windows, macOS and the web using modern frameworks and cutting-edge technologies.

My expertise spans offline-first architecture, enterprise SaaS & B2B product platforms (ASP.NET 3.5 / C# / SQL Server), Electron desktop apps with native integrations and auto-updates, installable Progressive Web Apps (PWA), custom native plugins & reusable libraries in Java, C# and npm, real-time communication systems, AI integration, and performance optimization across mobile, desktop and web. I'm passionate about delivering solutions — one shared codebase for mobile apps, website, Windows / Apple desktop apps and PWA — that not only meet technical requirements but exceed user expectations.

Chennai, Tamil Nadu, India
BCA (2011) — University of Madras
Diploma in .NET Technologies (2012) — NIIT, Chennai
Tamil & English
contact@gopim.dev
Freelance Mobile • Web • Desktop Developer

BUILT FOR YOUR BUSINESS

Your business. Your next app.

Need mobile for your business? Pick your category — each page has pricing logic, features & FAQs.

Startup MVP Apps

From napkin sketch to Play Store. One senior dev, fixed price, zero drama.

See All Mobile App Development

TOOLS OF THE TRADE

The right stack for the right idea.

Every skill below is applied in a real, shipped product — tap a project chip to see it in action.

Cross-Platform Mobile Development

React NativeExpo SDKExpo RouterEAS BuildEAS SubmitIonic FrameworkIonic CapacitorCordovaPhoneGapProgressive Web Apps (PWA)Installable PWA (Manifest + Service Workers)PWA Push & Offline Support
Applied in: Commodity Quant MService FSM App Pillai Center Academy

Desktop App Development (Electron)

ElectronElectron BuilderElectron ForgeWindows Apps (NSIS / Squirrel / MSI)macOS Apps (DMG / Mac App Store)Linux Apps (AppImage / deb)Auto UpdatesIPC & Native APIsSystem Tray & Native MenusDeep LinkingCode Signing & NotarizationSingle Codebase: Web + Desktop

Native Plugins & Library Development (Java / C# / npm)

Java (Android Native Modules)Cordova Custom Plugins (Java)Capacitor Custom Plugins (Java)React Native Bridging (Java)Background Services & GPS PluginsAAR / JAR Library PackagingC# (.NET Class Libraries)NuGet Package PublishingC# Plugins & SDK Integrations.NET Components (ASP.NET / C# / SQL Server)npm Package DevelopmentTypeScript Reusable LibrariesPublish & Version npm Packages
Applied in: MService FSM App

Real-Time Communication (RTC)

WebRTCReal-Time Audio/VideoLive StreamingZegoCallZegoExpress SDKTeleCMIExotel
Applied in: AstroVed Consumer App AstroVedSpeaks

Web, Website & PWA Development

JavaScript (ES6+)TypeScriptReactAngularAstroWordPressBuddyBossHTML5CSS3SASSjQuery MobileKendo UIResponsive WebsitesInstallable PWAService Workers & Offline CachingWeb App ManifestPush Notifications (Web)Semantic HTML
Applied in: Planets360 QuantumGPT MService FSM App Pillai Center Academy

State Management & Storage

ReduxZustandTanStack React QuerySQLite
Applied in: Commodity Quant QuantumGPT

Push Notifications & Services

OneSignalFCM / APNsMsg91 (OTP / SMS / Voice)Deep LinkingCustom URL Schemes
Applied in: Commodity Quant AstroVed Consumer App

Firebase Platform

Firebase AnalyticsCrashlyticsPerformance MonitoringRemote ConfigCloud Messaging (FCM)Firebase AuthFirestoreRealtime DatabaseCloud StorageCloud FunctionsFirebase HostingApp Check

Authentication & Security

OAuth 2.0SSO (Single Sign-On)Google / Apple / Facebook Sign-InJWTToken-based AuthBiometric AuthSecure Storage (Keychain / Keystore)
Applied in: QuantumGPT Commodity Quant

Payment Integration

RazorpayStripeCosmofeedIn-App PurchasesSubscription BillingWebView PaymentsPayment Gateway Integration
Applied in: Instant Pooja Homa Pillai Center Academy Commodity Quant QuantumGPT AstroVed Consumer App

SEO & Web Performance

SEO OptimizationJSON-LDStructured DataMeta TagsSSG / SSRNetlifyGoogle Search ConsoleSEMrushGoogle AnalyticsKeyword ResearchSite AuditRank Tracking
Applied in: Planets360

Backend APIs & Databases

Node.jsExpress.jsPHPASP.NET 3.5 / C#REST API DesignMySQLPostgreSQLSQL ServerMongoDBSQLiteData ModelingQuery Optimization
Applied in: MService FSM App AstroVedSpeaks QuantumGPT AstroVed Consumer App

Generative AI

OpenAI (GPT-4 / GPT-3.5)Google GeminiLLM IntegrationPrompt EngineeringAI ChatbotsAI-Powered Features
Applied in: QuantumGPT

MCP Creation (Model Context Protocol)

MCP Server DevelopmentMCP Client IntegrationLLM Tool CreationContextual AI ToolsModel Context ProtocolPrompt-Based ToolsAI Agent Workflows
Applied in: QuantumGPT Planets360

Open AI Plugin Making

OpenAI Plugin DevelopmentChatGPT Plugin SDKCustom ChatGPT PluginsPlugin Manifest ConfigurationPlugin API IntegrationOpenAI ActionsPlugin Distribution
Applied in: Planets360

DevOps, CI/CD & App Deployment

EAS Build / Submit / UpdateCodeMagicOTA UpdatesGoogle Play ConsoleApp Store ConnectApp Store DeploymentPlay Store DeploymentWindows Desktop Packaging (Electron Builder)macOS Desktop Packaging (DMG / Notarization)Desktop Auto-Update ReleasesWeb / PWA Deployment (Netlify / Hosting)XcodeAndroid StudioGitCI/CD
Applied in: Commodity Quant AstroVed Consumer App

Monitoring & Observability

SentryError TrackingCrash ReportingPerformance MonitoringElasticsearchElastic LoggingLog AnalyticsELK StackKibanaApplication Monitoring

Infrastructure & Cloud

Linux ServersUbuntuCentOSVirtual Machines (VMs)AWS EC2Google Cloud VMsServerless APIAWS LambdaCloudflareCDNCloudflare WorkersEdge ComputingCloud Infrastructure

Domain, DNS & SSL Management

GoDaddyCloudflareDNS ManagementNameserver ConfigurationSSL CertificatesHTTPS SetupLet's EncryptSubdomain Configuration

Architecture & Methods

Offline-First ArchitectureMVVMClean ArchitectureAgile / ScrumPerformance Optimization
Applied in: MService FSM App

THE JOURNEY SO FAR

Experience that goes beyond code.

Programmer Analyst - Product Engineering

Selfservit Solutions Pvt Ltd (mservice.ai) | Chennai, Tamil Nadu

May 2012 – June 2016 (4 Years 1 Month)

  • Spearheaded end-to-end development of a cloud-based Field Service Management (FSM) mobile app for iOS and Android using Cordova, jQuery Mobile, and Kendo UI.
  • Conducted Research & Development with new technologies to build core software product components and solutions as a key member of the product engineering team.
  • Developed hybrid mobile and web applications using jQuery, jQuery Mobile, and Kendo UI Mobile, alongside functional components using .NET technologies (ASP.NET 3.5, .aspx, C#, and SQL Server).
  • Built custom Java native plugins for background GPS location tracking and offline data synchronization.
  • Architected an Offline-First mobile system ensuring 99.5% application availability for field engineers working in low-connectivity zones.
  • Improved cross-device UI accessibility and mobile responsiveness by 30% across multiple screen sizes and operating systems.
  • Managed app deployments across Google Play, Apple App Store, and Windows Store, owning release builds and store compliance.
  • Handled requirements analysis, design, customer delivery, and support, translating business needs into product features and resolving client issues.

Flagship Product Delivered

MService Enterprise FSM App (mservice.ai)

Team Lead - Cross-Platform Mobile Applications

AstroVed | Chennai, Tamil Nadu

Dec 2016 – Mar 2026 (9+ years)

  • Led end-to-end delivery of cross-platform mobile applications for iOS and Android using React Native, Ionic, and Angular, covering requirements, architecture, development, testing, deployment, and production support.
  • Managed and mentored the mobile development team, including sprint planning, task allocation, technical guidance, performance management, and delivery tracking.
  • Owned technical architecture and engineering standards, driving scalable solutions, reusable components, coding best practices, and maintainable application design.
  • Led code reviews, technical reviews, debugging, and refactoring, ensuring code quality, performance, reliability, and adherence to development standards.
  • Collaborated with product, backend, QA, UI/UX, and business teams to translate requirements into solutions, resolve technical challenges, and deliver features on schedule.
  • Owned production support and application stability, including bug fixes, crash analysis, root-cause investigation, performance optimization, and incident resolution; improved mobile user engagement by 20%.
  • Managed App Store and Google Play releases and the complete SDLC, including release planning, deployment, monitoring, maintenance, and continuous product improvements.

Key Projects Delivered

AstroVed Consumer Mobile App AstroVedSpeaks Consultation Platform Instant Pooja Homa Booking App QuantumGPT AI Guidance Platform Pillai Center Academy Learning App

Freelance Mobile & Web Developer

Independent / Freelance | Chennai, Tamil Nadu

Apr 2026 – Present

  • Design, build, and ship complete products end-to-end as an independent developer — from architecture and UI to publishing on Google Play, Apple App Store, and the web.
  • Own the full product lifecycle, including branding, subscription monetization, push notification strategy, store compliance, SEO, and post-launch monitoring.

Key Projects Delivered

Planets360 — Vedic Astrology Platform Commodity Quant — MCX Signals App

HAVE SOMETHING IN MIND?

Let's make your next
big idea happen.

I'm open to discussing new projects, innovative ideas, and opportunities to be part of your vision.

WhatsApp

+91 99521 04427

Email

contact@gopim.dev

LinkedIn

@gopi-kpm
Chat on WhatsApp